rownum是oracle才有的写法,rownum在oracle中可以用于取第一条数据,或者批量写数据时限定批量写的数量等mysql取第一条数据写法 SELECT * FROM t order by id LIMIT 1;oracle取第一条数据写法SELECT * FROM t where rownum =1 order by id;ok,上面..
1. 插入数据前判断数据是否存在SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO -- ============================================= -- Author: <Author,,Name> -- Create date: <Create Date,,> -- Description: <Description,,> -- ==========..